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gogolik [260]
3 years ago
11

two cars go through 2 different crashes. car one 1 experiences a 500N impulse for a duration for 15s, while car2 experiences the

same impulse for a duration of 5s which car experiences the most force during their collison
Physics
1 answer:
likoan [24]3 years ago
7 0

Answer:

Conservation of momentum.

Momentum is zero after collision, no direction or speed.

Explanation:

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slavikrds [6]

Answer:

A.) stability of an atom

Explanation:

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It stands for Unified Computing System

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Read 2 more answers
A metal ball has a net charge of 4.5x10-7 C
netineya [11]

a) the number of protons is 2.81\cdot 10^{12} more than the electrons

b) 4.69\cdot 10^{-15} kg

Explanation:

The net electric charge on the ball is

Q=+4.5\cdot 10^{-7}C

This electric charge is given by the algebraic sum of the charge of the protons and of the charge of the electrons.

The charge of one proton is:

q_p =+e= +1.6\cdot 10^{-19}C

While the charge of one electron is

q_e = -e=-1.6\cdot 10^{-19}C

So the net charge on the metal ball will be given by

Q=N_p q_p + N_e q_e = (N_p -N_e)e

where

N_p is the number of protons

N_e is the number of electrons

So we find:

N_p-N_e=\frac{Q}{e}=\frac{4.5\cdot 10^{-7}}{1.6\cdot 10^{-19}}=2.81\cdot 10^{12}

This means that the number of protons is 2.81\cdot 10^{12} more than the electrons.

b)

In this case, we want to make the ball neautral, so we have to remove a net charge of Q' such that the new charge is zero:

Q-Q'=0

This implies that the charge that we must remove is

Q'=Q=4.5\cdot 10^{-7}C

To do that (and to make the ball losing mass at the same time), we have to remove protons, since they have positive charge.

The number of protons that must be removed is:

N_p = \frac{Q'}{q_p}=\frac{4.5\cdot 10^{-7}}{1.6\cdot 10^{-19}}=2.81\cdot 10^{12}

The mass of one proton is

m_p = 1.67\cdot 10^{-27}kg

Therefore, the total mass that must be removed from the ball is

M=m_p N_p = (1.67\cdot 10^{-27})(2.81\cdot 10^{12})=4.69\cdot 10^{-15} kg

6 0
2 years ago
Which statement is the best explanation for the graph? (1 point)
sammy [17]

Answer:

zgzzhzhhzhxhxushd

hsus

Explanation:

jzhbzh hzgz

3 0
3 years ago
Destiny is eating lunch at her favorite cafe when her friend Jada calls and says she wants to meet her. Jada is calling from a c
NeTakaya

Answer:

Explanation:

Let time taken by Jada in driving be t hour .

distance travelled by jada = 55 t

a )

Time of drive by destiny = t - 10 min

= t - .167 hour

distance of travel by destiny = 70 ( t - .167 )

Total distance = 45 miles

55 t + 70 ( t - .167 ) = 45

55t + 70 t - 11.69 = 45

125 t = 56.69

t = .453 hour = 27.21 minutes

b )

distance travelled by Destiny = 70 ( t - .167 )

70 ( .453 - .167 )

= 20.02 miles .

5 0
3 years ago
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